Acorn woodpecker species accounts, v4448
Page 331
Image from the Biodiversity Heritage Library. Contributed by Museum of Vertebrate Zoology, University of California, Berkeley. | www.biodiversitylibrary.org
Transcription
1988 WalteD Koenig Melanerpes formicivorus Plague HNHR (14 April) relatively large proportion of incubation here! Also, I've seen no sign at all of 81443, who's probably gone. * → Judy reports 8521 having been in the hole for ~5 min later today! Otherwise, people have seen him, but not go in, the hole. 15 April (200. My turn to watch. Again, people report having seen him go to, but not in, The hole. 1226. 8521 came, stuck his head in several times; left 4% enter- 1315. Checked hole: still 5 eggs. Measured #5: 25.0 × 18.8 mm. 1424. Same as at 1226. 16 April 910. Back again. 8512 still wasn't gone in again except for the one time on 14 April. * → 1043-1046. 8521 came, entered, spent most of the 3 minutes he was inside poking his head in and out. 8521 did not look out during this time, she was presumably on the eggs. 8521 then left at 1046. 17 April 1215. Well, bad news. Yesterday afternoon 8521 started going into the nest, and eventually tossed 2 eggs. Watches were continued this morning, by which time the babies had hatched. 8521 was seen going in, I think, by Jane K., but nothing of interest was noted. Just now Judy finished her watch and I checked the nest, finding 2 babies and no eggs. So what happened to the 5th egg? In any case, it appears to be a repeat of last year: 8521 again tossed 2 eggs right at hatching — then but did not destroy the nest (although the disappearance of the 5th baby/egg does raise the possibility that he still might do so).